ooniprobe - Measure Internet Censorship & Speed

Interested in collecting evidence of Internet censorship? Curious about
the speed and performance of the network that you are using?

By running the tests in this app, you will examine the following:

Blocking of websites

Presence of systems that could be responsible for censorship and/or surveillance

Speed and performance of your network

These
tests have been developed by the Open Observatory of Network
Interference (OONI), a free software project (under The Tor Project)
that aims to uncover **Internet censorship** around the world. Since
2012, OONI has collected millions of network measurements across more
than 90 countries, shedding light on multiple cases of network
interference. By running these tests, you will help increase
*transparency* around Internet censorship and network interference
around the world.

Collecting evidence of Internet
censorship.

OONI's web connectivity test is designed to examine
whether websites are blocked and if so, how. This test, in particular,
attempts to determine whether access to sites is blocked through DNS
tampering, TCP/IP blocking, or by a transparent HTTP proxy. By knowing
how access to sites is interfered with, you can more easily evaluate how
to circumvent that specific type of censorship. As OONI is committed to
transparency through the publication of all network measurement data,
you can use it as evidence of any censorship events that you come
across.

Detecting systems responsible for censorship and
surveillance.

Various types of proxy technologies are used in networks
for implementing censorship, surveillance, and traffic manipulation.
OONI's HTTP invalid request line test is designed to uncover the
presence of such systems within tested networks. However, it's important
to point out that not all systems that you might find are necessarily
responsible for censorship and/or surveillance! Many proxy technologies,
for example, are used in networks for caching purposes.

Measuring the speed and performance of your network.

Sometimes the
network that we are using doesn't work as well as we'd like it to.
OONI's implementation of the Network Diagnostic Test (NDT) attempts to
measure the speed of your network by connecting to mLab servers near you
and by subsequently uploading and downloading random data. In doing so,
NDT collects low level TCP/IP information that can help characterize
the speed and performance of your network. Such information can also be
useful in examining cases of throttling.

Open data.

OONI
publishes all network measurement data that it collects and processes
because open data allows third parties to conduct independent studies,
to verify OONI findings and/or to answer other research questions. Such
data also helps increase transparency around Internet censorship and
various forms of network interference. All data is published on OONI
Explorer: https://explorer.ooni.torproject.org/.

Free
software.

All OONI tests, as well as its NDT implementation, are based
on free and open source software. You can find the source code through
the following link:

Attention. Running ooniprobe might be against the terms of service of your ISP or
legally questionable in your country. By running ooniprobe you will
connect to web services which may be banned, and use web censorship
circumvention methods such as Tor. The OONI project will publish data
submitted by probes, possibly including your IP address or other
identifying information. In addition, your use of ooniprobe will be
clear to anyone who has access to your computer, and to anyone who can
monitor your Internet connection (such as your employer, ISP or
government).